Results 91 to 100 of about 3,070 (205)

Síntesis y caracterizaciónde SrFe12O19/CoFe2O4para la adsorción de cromo(VI) en soluciones acuosas

open access: yesAvances en Ciencias e Ingeniería
In this work, a magnetic composite of strontium hexaferrite(SrFe12O19) and cobalt ferrite (CoFe2O4)was synthesized using the polymer complex (Pechini) method to remove chromium VI from contaminated water. The structure, morphology, and chemical
María A. Urbano-Peña   +4 more
doaj   +1 more source

Nano Crystalline La Substituted Barium Hexaferrite Synthesized by Coprecipitation Method

open access: yes, 2011
La substituted barium hexaferrite Ba1-yFe12LayO19 with 0≤ y ≤0.5 was synthesized by chemical co-precipitation method using aqueous solutions of metallic chlorides at ambient temperature. NaOH was used as a precipitant.
Abolghasem Ataie, S. Moslemi
core   +1 more source

AN INVESTIGATION INTO MECHANOCHEMICAL SYNTHESIS OF NANOCRYSTALLINE HEXAFERRITE POWDER

open access: yes, 2011
Nanocrystalline strontium hexaferrite powder has been prepared by a new mechanochemical method in which the single phase hexaferrite was obtained via a sol–gel autocombustion process followed by an intermediate high energy milling step and subsequent ...
SH. RAYGAN   +2 more
core   +1 more source

Integration of Circulators: A Review of Self-biased Magnetic and Nonmagnetic Technologies

open access: yes工程科学与技术
SignificanceCirculators are three-port nonreciprocal microwave devices that enable unidirectional signal transmission while providing reverse isolation.
ZHANG Tao, JIANG Dongyi, CHEN Zhaohui
doaj  

Aligned Permanent Magnet Made in Seconds–An In Situ Diffraction Study

open access: yesAdvanced Electronic Materials
The synthesis of a strontium hexaferrite magnet is studied using in situ synchrotron powder X‐ray diffraction (PXRD) with a 16‐ms time resolution. The precursor material is cold compacted shape‐controlled goethite and strontium carbonate.
Amalie P. Laursen   +7 more
doaj   +1 more source

Magnetism in La substituted Sr hexaferrite

open access: yes, 2005
The electronic structure of LaₓSr₁₋ₓFe₁₂O₁₉ (x=0, 0.25, 0.5, 0.75, 1) hexaferrite is calculated using the density functional theory and generalized gradient approximation (GGA).
Pieper, Martin   +6 more
core   +4 more sources

The influence of the particle size on rheological properties of magneto fluidized bed of strontium hexaferrite [PDF]

open access: yesE3S Web of Conferences
Powder metallurgy processes are in general less polluting and more sustainable than the traditional mechanical manufacturing. In order to organize technological processes with the ferromagnetic powders, one usually applies special methods to change the ...
Egorov Ivan   +2 more
doaj   +1 more source

Solvothermal Synthesis of SrFe12O19 Hexaferrites: Without Calcinations

open access: yesJournal of Superconductivity and Novel Magnetism, 2014
In this study, the effect of temperature on the hydrothermal synthesis of single-phase SrFe12O19 hexaferrite (SrM) was investigated. For this synthesis, annealing or calcination process was applied. The Fe/Ba molar ratio was taken as 8:1. In this study, single-phase SrM NPs were synthesized via hydrothermal method.
Shafiu, S., Sozeri, H., Baykal, A.
openaire   +2 more sources

Synthesis and Characterization of Cu-Co Substituted Strontium Hexaferrite for Magnetic Applications

open access: yesMedžiagotyra
In this study, the structural and magnetic characterizations of a series of SrCoxCuxFe12-2xO19; 0.0 ≤ x ≤ 0.5 samples, which were produced by the conventional ceramic method, were carried out.
Burcu ERTUG
doaj   +1 more source

Miniature hexaferrite axial-mode helical antenna for unmanned aerical vehicle applications

open access: yes, 2013
Hexaferrite, axial-mode helical antenna is proposed to provide reliable communication for unmanned aerial vehicle (UAV) applications. The conventional axial-mode helical antenna uses an air core or low dielectric material, resulting in large antenna size.
University of Alabama. Dept. of Electrical and Computer Engineering   +5 more
core   +2 more sources

Home - About - Disclaimer - Privacy